文献类型：专利

英文题名：Preparing graphite phase carbon nitride quantum dot comprises e.g. weighing thiourea and paving, calcining, cooling the yellow solid, grinding, adding graphite phase carbon nitride flake solid, ammonia and carrying out hydrothermal reaction

作者：LE Z;XIE Y;GUO R

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN106395771-A

申请日：2016-08-31

公开日：2017-02-15

语种：英文

收录：DERWENT

摘要：NOVELTY - Preparing graphite phase carbon nitride quantum dot comprises e.g. (i) weighing thiourea and uniformly paving on bottom of the crucible and calcining to obtain graphite phase carbon nitride body, (ii) cooling the yellow solid, uniformly grinding and calcining to obtain graphite phase carbon nitride sheet, and (iii) taking graphite phase carbon nitride flake solid, then adding water or concentrated ammonia, ultrasonic dispersing, carrying out hydrothermal reaction and then cooling to obtain final product. USE - The method is useful for preparing graphite phase carbon nitride quantum dot (claimed). ADVANTAGE - The quantum dot has good water solubility, high chemical inertness, low toxicity, light-resistant bleaching, is easy to function, and environmentally friendly. DETAILED DESCRIPTION - Preparing graphite phase carbon nitride quantum dot comprises (i) weighing 40 g thiourea and uniformly paving on bottom of the crucible, placing the crucible in a muffle furnace and calcining at 500 degrees C at a heating rate of 3 degrees C/minute for 2 hours to obtain graphite phase carbon nitride body, (ii) cooling the yellow solid to room temperature and uniformly grinding, once again placing in the muffle furnace and calcining at 520 degrees C at a heating rate of 3 degrees C/minute for 2 hours to obtain graphite phase carbon nitride sheet, and (iii) taking 20-100 mg graphite phase carbon nitride flake solid, then adding 30-50 ml water or 30 ml concentrated ammonia, ultrasonic dispersing for 5-9 hours, taking uniform liquid and transferring into 50 ml polytetrafluoroethylene reactor, carrying out hydrothermal at 180-200 degrees C for 10-12 hours, and then cooling to room temperature to obtain final product.